What is the order of reaction between acetone and iodine?
The iodination of acetone is also catalyzed by hydrogen ions. The effects of varying the concentrations of acetone, iodine and hydrogen ions have been studied earlier and it has been found that the reaction is zero order with respect to iodine.
What is the error in the iodination of acetone experiment?
Both [Acetone] and [H+] are first-order reactions, resulting in an overall second-order reaction. The main source of error in the lab came from not correctly measuring out the substances, resulting in a very askew time and rate of reaction.
What is the activation energy for the iodination of acetone?
67.86 kJ/mol
Second-order kinetics concerning acetone and HCl was identified with activation energy of 67.86 kJ/mol.
Which indicator is used in acid catalysed iodination of acetone?
Iodine
Iodine gives a deep yellowish brown color in aqueous solution. As acetone is iodinated and Iodine is converted to iodide ion, this color slowly fades as iodine is consumed. Thus iodination of acetone can be investigated by the change in absorbance.
What happens to the rate of reaction if you double the concentration of acetone?
The rate is proportional to the concentration of a reactant. When you double the concentration the rate doubles. The rate is proportional to the square of the concentration of a reactant. When you double the concentration the rate goes up four times.
Does acetone react with HCL?
When acetone reacts with HCL, it produce mesityl oxide and phorone which could be broken down by the process of distillation.
What is the product of iodination of acetone?
When an aqueous iodine solution reacts with acetone in the presence of an acid, the yellow color slowly fades as the iodine is consumed. The products of the reaction are iodoacetone and hydrogen iodide. The hydrogen ion is a catalyst for this reaction.
Why Sodium acetate is used in iodination of acetone?
Answer. SODIUM ETHANOATE promote the enolization of acetone by removal of the acidic hydrogen alpha to the carbonyl. The enolate tautomer can then attack the electrophilic iodine-containing species from the now highly nucleophilic carbon.
Which equation is correct for first order reaction?
For first-order reactions, the equation ln[A] = -kt + ln[A]0 is similar to that of a straight line (y = mx + c) with slope -k. This line can be graphically plotted as follows.
What happens when you change the type of ketone in butanone reaction?
Changing the type of ketone in the reaction to butanone will prevent this haloketone from being produced, however the new ketone has a different chain length and therefore there is a need to test if there is a significant difference between the rates of the reaction the iodination of propanone and the iodination of butanone.
How to convert absorbance of propanone to concentration?
Use calibration curve to convert absorbance to concentration then draw a concentration-time graph. This technique will be used to measure and compare the reaction rates of the iodination of propanone with a different catalysts.
How do you measure the rate of reaction of iodine?
The rate can be measured by finding the time taken for the iodine colour to disappear. You can follow the rate of the reaction using a colorimeter. You would need to calibrate the colorimeter with a series of solutions of known concentrations of iodine.